Dog saliva on an object that has rabies virus on it usually loses its contagiousness within a few minutes. The survival time of the rabies virus in the external environment is affected by temperature and humidity. Rabies are in a drier, warmer environment generally a few minutes may be inactivated, in the more dark and humid surfaces can survive for dozens of hours. The rabies virus is not suited to survive in the outside world and can only survive in the animal’s body, so it doesn’t survive for very long in the outside world. Sunlight, ultraviolet light, etc. can inactivate the rabies virus. Dog saliva on objects is generally not contagious to people, and the rabies virus is generally not contagious without contact with human wounds. If the dog’s saliva into the person’s fresh wound there is a possibility of rabies, to timely wound treatment, but also to actively inject rabies vaccine to prevent rabies.